| Title |
A Vision-based Pipe Support Displacement Measurement Method Using Moire Patterns |
| Authors |
Park, Junbeom ; Park, Semi ; Kim Jaehyeon ; Kim, Jungyeol |
| DOI |
https://dx.doi.org/10.6106/KJCEM.2022.23.1.037 |
| Keywords |
Moire Pattern; Pipe Support; Displacement Measurement; Collapse Forecasting; Safety |
| Abstract |
It is very important to measure the displacement of a structure to evaluate the safety of the structure. This study shows a methodology to measure the displacement to determine the stability of a structure when it is damaged by loads. The methodology used Moire's phenomenon and was verified through experiments. The experiments utilized pipes to simulate the pipe supports in the construction site and measured the vertical displacement of the Moire interference patterns according to the horizontal displacement of the pipes. Experiments confirmed that the linear relationship between horizontal displacement of pipes and vertical displacement of Moire patterns and derive a relational expression. In conclusion, the methodology presented in this work allows us to simultaneously measure a number of vertical members’ displacements regardless of distance and determine the safety of the structure. |